[RRG] RE: Abstraction action boundary geo-aggregation router behavior

2008-07-22 Thread Tony Li
Hi Robin, |If this was a maths class, I would be sure that this Friday's test |would include questions on abstraction action boundary and |abstraction naming boundary! ;-) Indeed. Those are Noel-ism's as you've found out, and they're absolutely necessary to talk about aggregation

[RRG] Abstraction action boundary geo-aggregation router behavior

2008-07-21 Thread Robin Whittle
Hi Tony, If this was a maths class, I would be sure that this Friday's test would include questions on abstraction action boundary and abstraction naming boundary! Perhaps you could give a more concrete example of how you envisage routers behaving in a geographic address aggregation setting

Re: [RRG] RE: Abstraction action boundary geo-aggregation router behavior

2008-07-22 Thread Peter Sherbin
: Abstraction action boundary geo-aggregation router behavior To: 'Robin Whittle' [EMAIL PROTECTED], 'Routing Research Group' rrg@psg.com Date: Tuesday, July 22, 2008, 4:53 AM Hi Robin, |If this was a maths class, I would be sure that this Friday's test |would include questions on abstraction

RE: [RRG] Geographic aggregation-based routing is at odds with reality

2008-07-18 Thread Tony Li
renumbering and without any burden to those outside of the continent. If routing optimality becomes an issue, having an abstraction action boundary that is even one or more hops removed from the abstraction naming boundary can further improve the situation. The issue with this approach is again one

RE: [RRG] Geographic aggregation-based routing is at odds with reality

2008-07-20 Thread Tony Li
as most specifcs draw the traffic around your network, and you incur the phone calls from Canada, who will kindly ask you to cease and desist, eh? ;-) We discovered this when we tried to do proxy aggregation the first time: the abstraction action boundary MUST be carefully and thoughtfully

RE: Geo RIB-FIB compression, was: Re: [RRG] Geographic aggregation-based routing is at odds with reality

2008-07-21 Thread Tony Li
be delivered in Montreal rather than New York. But |this isn't the kind of coordination where the entire internet |needs to |be upgraded before something useful can happen. True, but it still requires all of the providers at the abstraction action boundary to coordinate to ensure that traffic

Geo RIB-FIB compression, was: Re: [RRG] Geographic aggregation-based routing is at odds with reality

2008-07-21 Thread Iljitsch van Beijnum
discovered this when we tried to do proxy aggregation the first time: the abstraction action boundary MUST be carefully and thoughtfully engineered to avoid unintended consequences. This requires cooperation. Right. A pan-Canadian network that also peers in some US cities may be somewhat

Geo RIB-FIB compression, was: Re: [RRG] Geographic aggregation-based routing is at odds with reality

2008-07-21 Thread Iljitsch van Beijnum
in question at those locations, inviting the traffic... We discovered this when we tried to do proxy aggregation the first time: the abstraction action boundary MUST be carefully and thoughtfully engineered to avoid unintended consequences. This requires cooperation. Right. A pan-Canadian